Found: Elastic Search fiddle

Python Fiddle

Tutorials Poins

This one does not follow the official naming convention but compiles and runs code
written in various languages. Checkout the supported languages from the top menu bar.
The list is exhaustive, from Ada to Verilog via Brainf*ck and other more or less
well known languages.
Go to TutorialsPoint.com

R-Fiddle

Interactive GCC compiler

This is not a regular fiddle. Instead of letting you execute c/c++ code the interactive
compiler compiles your code and then show the assembler code. This lets you investigate
what kind of machine code is generated for certain structures with specific compiler flags.
Go to gcc.gobolt.org

Clojure JS Fiddle

Clojure is a functional language that runs in JVM. Clojure JS takes Clojure code and
compiles the code to Javascript. This fiddle lets you write Clojure code, HTML template
and separate stylesheet and then see how they work together.
Go to cljsfiddle.net

Logo Interpreter

Logo Interepreter by Joshua Bell runs logo programs directly in your browser. To get started,
paste some example code from the right side to the field next to "Run" button and hit run.
Go to Logo Interpreter

Brainfuck visualizer

Getting your next big thing out with Brainfuck can sometimes be a bit overwhelming. But no worries,
the Brainfuck visualizer allows you to step through your application.
Brainfuck visualizer

FiddleSalad

Create your own web salad by mixing your choice of markup, style and programming logic. FiddleSalad supports
various languages for each part.
Go to FiddleSalad

Rust Play

ZK Fiddle

Play around with ZK Java framework for building web applications. Create UI, write Java code. Run and Test.
Go to ZK Fiddle

Go Fiddle

Nice an clean environment for trying out Go, the statically typed language developed originally at Google.
Go to Go Fiddle

IBM Swift sandbox

Apple recently open sourced Swift and now you can play around with it in the IBM Swift sandbox.
The system runs on top of Linux, in Docker containers.
Jump to sandbox

oK

oK is a learning environment for the K programming language.
In case your K-skills are a bit rusty, check out the oK documentation on Github.
The thing is open source, so you can also run it on your own machine.
oK

PHP Tester

Code goes left, results come right. Easy as that to test your PHP code. PHP Tester supports multiple versions
from age old 5.x to (almost) latest and the greatest.
Run PHP Tester

TMFiddle

One fiddle to rule them all! Those who feel that everything else here is just unnecessary
syntactic sugar might enjoy modeling their next killer app using the Turing Machine designer and
simulator.
Go to TMFiddle

PHP Fiddle

Quite comprehensive looking PHP playground with different frameworks and even debugger.
Fiddle with PHP

Code env

This aint your grandmothers Fiddle. This is more like a full blown development environment
where you can have your code and date. Don't let the login prompt fool you, scroll down
and choose a language or library to get right to the coding part.
Go to Code

C++ fiddle

First dedicated C++ Fiddle in this list. This service is backed by JYT just-in-time c++ compiler.
Fiddle with C++